YANBU

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{
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{
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{
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    "radius_m": 748.1000000000000227373675443232059478759765625,
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{
    "zone_id": "discovered_039",
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    "zone_id": "discovered_039"
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{
    "radius_m": 770.1000000000000227373675443232059478759765625,
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{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 398.5,
    "points_in_zone": 147,
    "first_point": {
        "ts": "2026-09-08T11:50:50+00:00",
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{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 399.6000000000000227373675443232059478759765625,
    "points_in_zone": 124,
    "first_point": {
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        "lon": 33.6778632999999985031536198221147060394287109375
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}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 395.1000000000000227373675443232059478759765625,
    "points_in_zone": 67,
    "first_point": {
        "ts": "2026-09-08T08:42:45+00:00",
        "lat": 34.70767330000000328027454088442027568817138671875,
        "lon": 33.320504999999997153281583450734615325927734375
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    "last_point": {
        "ts": "2026-09-08T15:17:50+00:00",
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        "lon": 33.35035830000000345307853422127664089202880859375
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}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69.5,
    "avg_distance_m": 86.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 30,
    "duration_minutes": 142.30000000000001136868377216160297393798828125,
    "overlap_duration_s": 8539,
    "speed_a_avg": 0.34999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.7199999999999999733546474089962430298328399658203125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.34999999999999997779553950749686919152736663818359375,
            "max_sog": 1.8000000000000000444089209850062616169452667236328125
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T08:24:48+00:00",
        "end": "2026-09-08T10:47:07+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 89,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 86m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 142 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b130m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 86m) for 142 minutes. Both vessels were slow-moving (avg speeds 0.3 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7078163999999986799593898467719554901123046875,
            "lon": 33.320229699999998729254002682864665985107421875
        },
        "time_window": {
            "start_ts": "2026-09-08T08:24:48+00:00",
            "end_ts": "2026-09-08T10:47:07+00:00"
        },
        "searched_at": "2026-09-08T11:00:04.933579+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 320.1000000000000227373675443232059478759765625,
    "avg_distance_m": 321.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 2,
    "duration_minutes": 318.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 19083,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T03:06:45+00:00",
        "end": "2026-09-08T08:24:48+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 320m, avg 322m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 318 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 320m, avg 322m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.708876500000002351953298784792423248291015625,
            "lon": 33.32154289999999718929757364094257354736328125
        },
        "time_window": {
            "start_ts": "2026-09-08T03:06:45+00:00",
            "end_ts": "2026-09-08T08:24:48+00:00"
        },
        "searched_at": "2026-09-08T09:15:07.696433+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 336,
    "points_in_zone": 5,
    "first_point": {
        "ts": "2026-09-08T03:06:45+00:00",
        "lat": 34.70766830000000169320628629066050052642822265625,
        "lon": 33.32054169999999970741555443964898586273193359375
    },
    "last_point": {
        "ts": "2026-09-08T08:42:45+00:00",
        "lat": 34.70767330000000328027454088442027568817138671875,
        "lon": 33.320504999999997153281583450734615325927734375
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}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 70.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 317.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 19074,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T03:24:51+00:00",
        "end": "2026-09-08T08:42:45+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 69m, avg 70m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 318 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 69m, avg 70m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69.2999999999999971578290569595992565155029296875,
    "avg_distance_m": 70.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 377.8999999999999772626324556767940521240234375,
    "overlap_duration_s": 22676,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T02:24:49+00:00",
        "end": "2026-09-08T08:42:45+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 69m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 69m, avg 71m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
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    "avg_distance_m": 322.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 378,
    "overlap_duration_s": 22682,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T02:06:46+00:00",
        "end": "2026-09-08T08:24:48+00:00"
    },
    "points_count": {
        "vessel_a": 8,
        "vessel_b": 8
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 322m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 322m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70887570000000010850271792151033878326416015625,
            "lon": 33.3215335000000010268195183016359806060791015625
        },
        "time_window": {
            "start_ts": "2026-09-08T02:02:21+00:00",
            "end_ts": "2026-09-08T08:24:48+00:00"
        },
        "searched_at": "2026-09-08T08:45:06.969286+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 8,
    "first_point": {
        "ts": "2026-09-08T02:12:46+00:00",
        "lat": 34.70766499999999865622157813049852848052978515625,
        "lon": 33.3205166999999988775016390718519687652587890625
    },
    "last_point": {
        "ts": "2026-09-08T08:42:45+00:00",
        "lat": 34.70767330000000328027454088442027568817138671875,
        "lon": 33.320504999999997153281583450734615325927734375
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 135.099999999999994315658113919198513031005859375,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-08T01:09:46+00:00",
        "lat": 34.70765999999999706915332353673875331878662109375,
        "lon": 33.32052329999999784604369779117405414581298828125
    },
    "last_point": {
        "ts": "2026-09-08T03:24:51+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.32052999999999798319549881853163242340087890625
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.30000000000001136868377216160297393798828125,
    "avg_distance_m": 323,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 135.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 8105,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T01:09:46+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 323m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 135 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 323m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7088734000000016521880752407014369964599609375,
            "lon": 33.3215320999999988771378411911427974700927734375
        },
        "time_window": {
            "start_ts": "2026-09-08T01:09:46+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T06:45:08.959602+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 135.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 8105,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T01:09:46+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 14,
        "vessel_b": 14
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 135 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 135 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7078980000000001382431946694850921630859375,
            "lon": 33.32024630000000087193257058970630168914794921875
        },
        "time_window": {
            "start_ts": "2026-09-08T01:09:46+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T06:45:11.348769+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 135.099999999999994315658113919198513031005859375,
    "points": 14,
    "centroid": {
        "lat": 34.7076773785714323139472980983555316925048828125,
        "lon": 33.32052665714285666354044224135577678680419921875
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048830000000094742063083685934543609619140625,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.3205600000000004001776687800884246826171875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 204.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 12244,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-08T00:00:47+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 15,
        "vessel_b": 15
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 204 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 204 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70789789999999896963345236144959926605224609375,
            "lon": 33.32024630000000087193257058970630168914794921875
        },
        "time_window": {
            "start_ts": "2026-09-08T00:00:47+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T06:45:06.552803+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 204.099999999999994315658113919198513031005859375,
    "points_in_zone": 15,
    "first_point": {
        "ts": "2026-09-08T00:00:47+00:00",
        "lat": 34.70767500000000183035808731801807880401611328125,
        "lon": 33.3205267000000020516381482593715190887451171875
    },
    "last_point": {
        "ts": "2026-09-08T03:24:51+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.32052999999999798319549881853163242340087890625
    }
}

{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 204.099999999999994315658113919198513031005859375,
    "points": 15,
    "centroid": {
        "lat": 34.70767722000000077287040767259895801544189453125,
        "lon": 33.32052666000000584745066589675843715667724609375
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048830000000094742063083685934543609619140625,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.3205600000000004001776687800884246826171875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.30000000000001136868377216160297393798828125,
    "avg_distance_m": 323.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 3,
    "duration_minutes": 210.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 12605,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T23:54:46+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 323m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 210 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 323m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.708874199999996790211298502981662750244140625,
            "lon": 33.32153410000000093305061454884707927703857421875
        },
        "time_window": {
            "start_ts": "2026-09-07T23:54:46+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T05:15:01.511194+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 210.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 12605,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T23:54:46+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 210 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 210 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70789810000000130685293697752058506011962890625,
            "lon": 33.3202466999999984409441822208464145660400390625
        },
        "time_window": {
            "start_ts": "2026-09-07T23:54:46+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T05:15:03.905167+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 210.099999999999994315658113919198513031005859375,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-09-07T23:54:46+00:00",
        "lat": 34.7076832999999993489836924709379673004150390625,
        "lon": 33.32054169999999970741555443964898586273193359375
    },
    "last_point": {
        "ts": "2026-09-08T03:24:51+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.32052999999999798319549881853163242340087890625
    }
}

{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 210.099999999999994315658113919198513031005859375,
    "points": 16,
    "centroid": {
        "lat": 34.70767760000000379250195692293345928192138671875,
        "lon": 33.32052759999999835827111382968723773956298828125
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048830000000094742063083685934543609619140625,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.3205600000000004001776687800884246826171875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 312.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 18724,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T22:12:47+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 312 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 312 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70789810000000130685293697752058506011962890625,
            "lon": 33.32024630000000087193257058970630168914794921875
        },
        "time_window": {
            "start_ts": "2026-09-07T22:12:47+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T04:30:02.034649+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 317.30000000000001136868377216160297393798828125,
    "avg_distance_m": 323.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 312.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 18724,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T22:12:47+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 312 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 324m) for 312 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7088729999999969777491060085594654083251953125,
            "lon": 33.32153699999999929559635347686707973480224609375
        },
        "time_window": {
            "start_ts": "2026-09-07T22:12:47+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T04:45:01.600027+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 312.1000000000000227373675443232059478759765625,
    "points_in_zone": 22,
    "first_point": {
        "ts": "2026-09-07T22:12:47+00:00",
        "lat": 34.70766830000000169320628629066050052642822265625,
        "lon": 33.32048669999999646051946911029517650604248046875
    },
    "last_point": {
        "ts": "2026-09-08T03:24:51+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.32052999999999798319549881853163242340087890625
    }
}

{
    "radius_m": 5.5,
    "duration_minutes": 312.1000000000000227373675443232059478759765625,
    "points": 22,
    "centroid": {
        "lat": 34.70767575454545550428520073182880878448486328125,
        "lon": 33.320528027272729332253220491111278533935546875
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.3205600000000004001776687800884246826171875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71.5,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 366.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 21963,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T21:18:48+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 366 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 72m) for 366 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 366.1000000000000227373675443232059478759765625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-09-07T21:18:48+00:00",
        "lat": 34.7076832999999993489836924709379673004150390625,
        "lon": 33.320508300000000190266291610896587371826171875
    },
    "last_point": {
        "ts": "2026-09-08T03:24:51+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.32052999999999798319549881853163242340087890625
    }
}

{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 366.1000000000000227373675443232059478759765625,
    "points": 28,
    "centroid": {
        "lat": 34.70767648214285827634739689528942108154296875,
        "lon": 33.32052809285713834697162383235991001129150390625
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.3205600000000004001776687800884246826171875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 366.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 21963,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T21:18:48+00:00",
        "end": "2026-09-08T03:24:51+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 323m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 366 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 323m) for 366 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70887160000000193349478649906814098358154296875,
            "lon": 33.32153699999999929559635347686707973480224609375
        },
        "time_window": {
            "start_ts": "2026-09-07T21:18:48+00:00",
            "end_ts": "2026-09-08T03:24:51+00:00"
        },
        "searched_at": "2026-09-08T03:45:01.441992+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 384,
    "overlap_duration_s": 23038,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T20:42:47+00:00",
        "end": "2026-09-08T03:06:45+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 384 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 72m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.5,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "overlap_duration_s": 23399,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T20:42:47+00:00",
        "end": "2026-09-08T03:12:46+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-09-07T20:42:47+00:00",
        "lat": 34.7076866999999964491507853381335735321044921875,
        "lon": 33.320563300000003437162376940250396728515625
    },
    "last_point": {
        "ts": "2026-09-08T03:12:46+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.32053499999999957026375341229140758514404296875
    }
}

{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 390,
    "points": 28,
    "centroid": {
        "lat": 34.7076760678571503149214549921452999114990234375,
        "lon": 33.3205292821428571414799080230295658111572265625
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70770329999999859182935324497520923614501953125,
        "max_lon": 33.320563300000003437162376940250396728515625
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 70,
    "avg_distance_m": 71.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 390,
    "overlap_duration_s": 23401,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T19:30:45+00:00",
        "end": "2026-09-08T02:00:46+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 396,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-09-07T19:30:45+00:00",
        "lat": 34.707656700000001137595972977578639984130859375,
        "lon": 33.32049669999999963465597829781472682952880859375
    },
    "last_point": {
        "ts": "2026-09-08T02:06:46+00:00",
        "lat": 34.7076866999999964491507853381335735321044921875,
        "lon": 33.320504999999997153281583450734615325927734375
    }
}

{
    "radius_m": 5.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 396,
    "points": 25,
    "centroid": {
        "lat": 34.70767433200000340320912073366343975067138671875,
        "lon": 33.320527859999998554485500790178775787353515625
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70769829999999700476109865121543407440185546875,
        "max_lon": 33.320563300000003437162376940250396728515625
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "overlap_duration_s": 23401,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T19:12:46+00:00",
        "end": "2026-09-08T01:42:47+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7088691000000011399606592021882534027099609375,
            "lon": 33.321539999999998826751834712922573089599609375
        },
        "time_window": {
            "start_ts": "2026-09-07T19:06:46+00:00",
            "end_ts": "2026-09-08T01:42:47+00:00"
        },
        "searched_at": "2026-09-08T02:00:01.669693+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "overlap_duration_s": 23401,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T18:54:45+00:00",
        "end": "2026-09-08T01:24:46+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-07T18:54:45+00:00",
        "lat": 34.7077000000000026602720026858150959014892578125,
        "lon": 33.32054169999999970741555443964898586273193359375
    },
    "last_point": {
        "ts": "2026-09-08T01:24:46+00:00",
        "lat": 34.70769169999999803621903993189334869384765625,
        "lon": 33.32052829999999943311195238493382930755615234375
    }
}

{
    "radius_m": 5.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 390,
    "points": 27,
    "centroid": {
        "lat": 34.70767264814815433737749117426574230194091796875,
        "lon": 33.3205275259259252607080270536243915557861328125
    },
    "bbox": {
        "min_lat": 34.7076382999999992762241163291037082672119140625,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.7077000000000026602720026858150959014892578125,
        "max_lon": 33.320563300000003437162376940250396728515625
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 70,
    "avg_distance_m": 72,
    "distance_consistency_m": 1.1999999999999999555910790149937383830547332763671875,
    "duration_minutes": 390,
    "overlap_duration_s": 23401,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T18:54:45+00:00",
        "end": "2026-09-08T01:24:46+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 375.6000000000000227373675443232059478759765625,
    "overlap_duration_s": 22534,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T17:45:13+00:00",
        "end": "2026-09-08T00:00:47+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 376 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 376 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 70,
    "avg_distance_m": 72.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 375.6000000000000227373675443232059478759765625,
    "overlap_duration_s": 22534,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T17:45:13+00:00",
        "end": "2026-09-08T00:00:47+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 376 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 376 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 384.8999999999999772626324556767940521240234375,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-09-07T17:35:53+00:00",
        "lat": 34.70743329999999815527189639396965503692626953125,
        "lon": 33.32187499999999857891452847979962825775146484375
    },
    "last_point": {
        "ts": "2026-09-08T00:00:47+00:00",
        "lat": 34.70767500000000183035808731801807880401611328125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 121.7000000000000028421709430404007434844970703125,
    "duration_minutes": 384.8999999999999772626324556767940521240234375,
    "points": 31,
    "centroid": {
        "lat": 34.70766552580645480929888435639441013336181640625,
        "lon": 33.32057624193547695767847471870481967926025390625
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70771500000000031604940886609256267547607421875,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 378.1000000000000227373675443232059478759765625,
    "points_in_zone": 34,
    "first_point": {
        "ts": "2026-09-07T16:12:41+00:00",
        "lat": 34.70769169999999803621903993189334869384765625,
        "lon": 33.32053330000000102018020697869360446929931640625
    },
    "last_point": {
        "ts": "2026-09-07T22:30:47+00:00",
        "lat": 34.70766330000000010613803169690072536468505859375,
        "lon": 33.32054000000000115733200800605118274688720703125
    }
}

{
    "radius_m": 122.2000000000000028421709430404007434844970703125,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "points": 34,
    "centroid": {
        "lat": 34.70766617058823300112635479308664798736572265625,
        "lon": 33.3205712735294099502425524406135082244873046875
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32048669999999646051946911029517650604248046875,
        "max_lat": 34.70771500000000031604940886609256267547607421875,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22686,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T16:12:41+00:00",
        "end": "2026-09-07T22:30:47+00:00"
    },
    "points_count": {
        "vessel_a": 32,
        "vessel_b": 32
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69.5,
    "avg_distance_m": 72.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22686,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T16:12:41+00:00",
        "end": "2026-09-07T22:30:47+00:00"
    },
    "points_count": {
        "vessel_a": 32,
        "vessel_b": 32
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69.900000000000005684341886080801486968994140625,
    "avg_distance_m": 71.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 23045,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T15:06:41+00:00",
        "end": "2026-09-07T21:30:46+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 70m, avg 72m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 384 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 70m, avg 72m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-09-07T15:06:41+00:00",
        "lat": 34.70768000000000341742634191177785396575927734375,
        "lon": 33.3205200000000019144863472320139408111572265625
    },
    "last_point": {
        "ts": "2026-09-07T21:39:47+00:00",
        "lat": 34.70769500000000107320374809205532073974609375,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 121.400000000000005684341886080801486968994140625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 28,
    "centroid": {
        "lat": 34.70766594642856972541267168708145618438720703125,
        "lon": 33.3205799999999925375959719531238079071044921875
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32049669999999963465597829781472682952880859375,
        "max_lat": 34.70771500000000031604940886609256267547607421875,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316,
    "avg_distance_m": 323.6000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 384.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 23045,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T15:06:41+00:00",
        "end": "2026-09-07T21:30:46+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 316m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 384 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 316m, avg 324m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7088686000000024023393052630126476287841796875,
            "lon": 33.32154200000000088266460807062685489654541015625
        },
        "time_window": {
            "start_ts": "2026-09-07T15:06:41+00:00",
            "end_ts": "2026-09-07T21:30:46+00:00"
        },
        "searched_at": "2026-09-07T21:45:01.710599+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 69,
    "avg_distance_m": 71.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 348.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 20886,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T14:24:40+00:00",
        "end": "2026-09-07T20:12:46+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 69m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 348 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 69m, avg 71m) for 348 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.70790099999999966939867590554058551788330078125,
            "lon": 33.32024820000000175923560163937509059906005859375
        },
        "time_window": {
            "start_ts": "2026-09-07T14:24:40+00:00",
            "end_ts": "2026-09-07T20:12:46+00:00"
        },
        "searched_at": "2026-09-07T21:00:01.743254+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-09-07T14:42:40+00:00",
        "lat": 34.70769829999999700476109865121543407440185546875,
        "lon": 33.3205150000000003274180926382541656494140625
    },
    "last_point": {
        "ts": "2026-09-07T21:18:48+00:00",
        "lat": 34.7076832999999993489836924709379673004150390625,
        "lon": 33.320508300000000190266291610896587371826171875
    }
}

{
    "radius_m": 120.900000000000005684341886080801486968994140625,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 25,
    "centroid": {
        "lat": 34.7076644600000037144127418287098407745361328125,
        "lon": 33.3205848639999970828284858725965023040771484375
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32049669999999963465597829781472682952880859375,
        "max_lat": 34.70771500000000031604940886609256267547607421875,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.69999999999998863131622783839702606201171875,
    "avg_distance_m": 323.5,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 378.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22687,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T14:24:40+00:00",
        "end": "2026-09-07T20:42:47+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 324m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 32,
    "first_point": {
        "ts": "2026-09-07T13:42:40+00:00",
        "lat": 34.70771330000000176596586243249475955963134765625,
        "lon": 33.3205183000000033644028007984161376953125
    },
    "last_point": {
        "ts": "2026-09-07T20:12:46+00:00",
        "lat": 34.7076866999999964491507853381335735321044921875,
        "lon": 33.320553300000000263025867752730846405029296875
    }
}

{
    "radius_m": 122.599999999999994315658113919198513031005859375,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 32,
    "centroid": {
        "lat": 34.7076730625000067220753408037126064300537109375,
        "lon": 33.3205687499999925194060779176652431488037109375
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32048830000000094742063083685934543609619140625,
        "max_lat": 34.70772000000000190311766345985233783721923828125,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.69999999999998863131622783839702606201171875,
    "avg_distance_m": 324.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 23406,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T13:42:40+00:00",
        "end": "2026-09-07T20:12:46+00:00"
    },
    "points_count": {
        "vessel_a": 30,
        "vessel_b": 30
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 390 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 324m) for 390 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 71.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 348.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 20885,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T13:42:40+00:00",
        "end": "2026-09-07T19:30:45+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 348 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 348 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005400,
        "imo": 9688374,
        "name": "STI FULHAM",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 316.69999999999998863131622783839702606201171875,
    "avg_distance_m": 324,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 23224,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T12:54:41+00:00",
        "end": "2026-09-07T19:21:45+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 317m, avg 324m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 387 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and STI FULHAM) maintained close proximity (min 317m, avg 324m) for 387 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 68.400000000000005684341886080801486968994140625,
    "avg_distance_m": 70.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 1.5,
    "duration_minutes": 360.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 21604,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T12:54:41+00:00",
        "end": "2026-09-07T18:54:45+00:00"
    },
    "points_count": {
        "vessel_a": 25,
        "vessel_b": 25
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 68m, avg 71m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 360 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 68m, avg 71m) for 360 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-09-07T12:54:41+00:00",
        "lat": 34.70771669999999886613295529969036579132080078125,
        "lon": 33.32056829999999791880327393300831317901611328125
    },
    "last_point": {
        "ts": "2026-09-07T19:21:45+00:00",
        "lat": 34.7076382999999992762241163291037082672119140625,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 122.400000000000005684341886080801486968994140625,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 31,
    "centroid": {
        "lat": 34.70767455806452517208526842296123504638671875,
        "lon": 33.3205715580645147610994172282516956329345703125
    },
    "bbox": {
        "min_lat": 34.70743329999999815527189639396965503692626953125,
        "min_lon": 33.32048830000000094742063083685934543609619140625,
        "max_lat": 34.70772000000000190311766345985233783721923828125,
        "max_lon": 33.32187499999999857891452847979962825775146484375
    },
    "zone_id": "discovered_039"
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 384,
    "points_in_zone": 16,
    "first_point": {
        "ts": "2026-09-07T10:06:42+00:00",
        "lat": 34.70779329999999873734850552864372730255126953125,
        "lon": 33.320459999999997080522007308900356292724609375
    },
    "last_point": {
        "ts": "2026-09-07T16:30:41+00:00",
        "lat": 34.7076617000000027246642275713384151458740234375,
        "lon": 33.32053330000000102018020697869360446929931640625
    }
}

{
    "radius_m": 11.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 384,
    "points": 16,
    "centroid": {
        "lat": 34.707709262500003433160600252449512481689453125,
        "lon": 33.32051634999999834008121979422867298126220703125
    },
    "bbox": {
        "min_lat": 34.7076617000000027246642275713384151458740234375,
        "min_lon": 33.320459999999997080522007308900356292724609375,
        "max_lat": 34.70781000000000204863681574352085590362548828125,
        "max_lon": 33.32056829999999791880327393300831317901611328125
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 58.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 68.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 384,
    "overlap_duration_s": 23039,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T10:06:42+00:00",
        "end": "2026-09-07T16:30:41+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 69m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 384 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 59m, avg 69m) for 384 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 58.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 68.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 3.600000000000000088817841970012523233890533447265625,
    "duration_minutes": 351.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 21102,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T09:14:59+00:00",
        "end": "2026-09-07T15:06:41+00:00"
    },
    "points_count": {
        "vessel_a": 19,
        "vessel_b": 19
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 69m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 352 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 59m, avg 69m) for 352 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.707926700000001574153429828584194183349609375,
            "lon": 33.32023259999999709179974161088466644287109375
        },
        "time_window": {
            "start_ts": "2026-09-07T09:00:02+00:00",
            "end_ts": "2026-09-07T15:06:41+00:00"
        },
        "searched_at": "2026-09-07T15:45:01.624123+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 58.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 69.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 3.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 376.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 22581,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T08:26:19+00:00",
        "end": "2026-09-07T14:42:40+00:00"
    },
    "points_count": {
        "vessel_a": 22,
        "vessel_b": 22
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 69m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 376 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 59m, avg 69m) for 376 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 105.7000000000000028421709430404007434844970703125,
    "points_in_zone": 14,
    "first_point": {
        "ts": "2026-09-07T08:02:20+00:00",
        "lat": 34.7076866999999964491507853381335735321044921875,
        "lon": 33.32053830000000260724846157245337963104248046875
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 3.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 105.7000000000000028421709430404007434844970703125,
    "points": 14,
    "centroid": {
        "lat": 34.70768452857142705170190311037003993988037109375,
        "lon": 33.32052726428570821326502482406795024871826171875
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.32050170000000122172423289157450199127197265625,
        "max_lat": 34.70770499999999714191289967857301235198974609375,
        "max_lon": 33.320549999999997226041159592568874359130859375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 58.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 69.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 379.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 22765,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T07:35:17+00:00",
        "end": "2026-09-07T13:54:42+00:00"
    },
    "points_count": {
        "vessel_a": 27,
        "vessel_b": 27
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 59m, avg 70m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 379 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 59m, avg 70m) for 379 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 165.69999999999998863131622783839702606201171875,
    "points_in_zone": 24,
    "first_point": {
        "ts": "2026-09-07T07:02:17+00:00",
        "lat": 34.70767500000000183035808731801807880401611328125,
        "lon": 33.32053830000000260724846157245337963104248046875
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 4.5,
    "duration_minutes": 165.69999999999998863131622783839702606201171875,
    "points": 24,
    "centroid": {
        "lat": 34.7076836083333404303630231879651546478271484375,
        "lon": 33.32052069166666541377708199433982372283935546875
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.3204817000000019788785721175372600555419921875,
        "max_lat": 34.7077067000000027974238037131726741790771484375,
        "max_lon": 33.320549999999997226041159592568874359130859375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "min_distance_m": 55,
    "avg_distance_m": 67.2000000000000028421709430404007434844970703125,
    "distance_consistency_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 243.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14585,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T06:27:00+00:00",
        "end": "2026-09-07T10:30:05+00:00"
    },
    "points_count": {
        "vessel_a": 40,
        "vessel_b": 40
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 55m, avg 67m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 243 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (TWINKLE STAR and YANBU) maintained close proximity (min 55m, avg 67m) for 243 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 225.69999999999998863131622783839702606201171875,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-09-07T06:02:16+00:00",
        "lat": 34.70783329999999722303982707671821117401123046875,
        "lon": 33.320459999999997080522007308900356292724609375
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 12.800000000000000710542735760100185871124267578125,
    "duration_minutes": 225.69999999999998863131622783839702606201171875,
    "points": 36,
    "centroid": {
        "lat": 34.70772717500000226209522224962711334228515625,
        "lon": 33.32050467222222067675829748623073101043701171875
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.3204582999999985304384608753025531768798828125,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.320549999999997226041159592568874359130859375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 65.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 6.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 304.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 18263,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T05:20:17+00:00",
        "end": "2026-09-07T10:24:40+00:00"
    },
    "points_count": {
        "vessel_a": 40,
        "vessel_b": 40
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 66m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 304 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 56m, avg 66m) for 304 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 279.69999999999998863131622783839702606201171875,
    "points_in_zone": 40,
    "first_point": {
        "ts": "2026-09-07T05:08:18+00:00",
        "lat": 34.70778829999999715028025093488395214080810546875,
        "lon": 33.320459999999997080522007308900356292724609375
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 12.0999999999999996447286321199499070644378662109375,
    "duration_minutes": 279.69999999999998863131622783839702606201171875,
    "points": 40,
    "centroid": {
        "lat": 34.7077332074999986843977239914238452911376953125,
        "lon": 33.320500872499991373842931352555751800537109375
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.3204582999999985304384608753025531768798828125,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.320549999999997226041159592568874359130859375
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    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 63.7999999999999971578290569595992565155029296875,
    "distance_consistency_m": 6.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 376.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 22584,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T04:08:16+00:00",
        "end": "2026-09-07T10:24:40+00:00"
    },
    "points_count": {
        "vessel_a": 55,
        "vessel_b": 55
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 64m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 376 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 56m, avg 64m) for 376 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 34.7079355999999989990101312287151813507080078125,
            "lon": 33.3202284999999989167918101884424686431884765625
        },
        "time_window": {
            "start_ts": "2026-09-07T04:08:16+00:00",
            "end_ts": "2026-09-07T10:24:40+00:00"
        },
        "searched_at": "2026-09-07T10:45:01.854159+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 345.69999999999998863131622783839702606201171875,
    "points_in_zone": 54,
    "first_point": {
        "ts": "2026-09-07T04:02:16+00:00",
        "lat": 34.707823300000001154330675490200519561767578125,
        "lon": 33.3204683000000017045749700628221035003662109375
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 10.699999999999999289457264239899814128875732421875,
    "duration_minutes": 345.69999999999998863131622783839702606201171875,
    "points": 54,
    "centroid": {
        "lat": 34.70774981481482512890579528175294399261474609375,
        "lon": 33.3204945333333313328694202937185764312744140625
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.3204582999999985304384608753025531768798828125,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.320549999999997226041159592568874359130859375
    },
    "zone_id": "discovered_039"
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 396.69999999999998863131622783839702606201171875,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-09-07T03:11:17+00:00",
        "lat": 34.70781670000000218578861677087843418121337890625,
        "lon": 33.32047829999999777328412164933979511260986328125
    },
    "last_point": {
        "ts": "2026-09-07T09:47:59+00:00",
        "lat": 34.7076966999999996232872945256531238555908203125,
        "lon": 33.3205267000000020516381482593715190887451171875
    }
}

{
    "radius_m": 11.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 396.69999999999998863131622783839702606201171875,
    "points": 62,
    "centroid": {
        "lat": 34.70775731129032948274470982141792774200439453125,
        "lon": 33.32049158225805740585201419889926910400390625
    },
    "bbox": {
        "min_lat": 34.70765829999999851906977710314095020294189453125,
        "min_lon": 33.3204582999999985304384608753025531768798828125,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.320549999999997226041159592568874359130859375
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 63.60000000000000142108547152020037174224853515625,
    "distance_consistency_m": 6.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 385.3999999999999772626324556767940521240234375,
    "overlap_duration_s": 23123,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T03:59:17+00:00",
        "end": "2026-09-07T10:24:40+00:00"
    },
    "points_count": {
        "vessel_a": 57,
        "vessel_b": 57
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 64m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 385 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 56m, avg 64m) for 385 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005294,
        "imo": 9363780,
        "name": "TWINKLE STAR",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 55.89999999999999857891452847979962825775146484375,
    "avg_distance_m": 62.7000000000000028421709430404007434844970703125,
    "distance_consistency_m": 6.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 390.69999999999998863131622783839702606201171875,
    "overlap_duration_s": 23442,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-07T02:56:18+00:00",
        "end": "2026-09-07T09:27:00+00:00"
    },
    "points_count": {
        "vessel_a": 61,
        "vessel_b": 61
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 95,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 56m, avg 63m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 391 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and TWINKLE STAR) maintained close proximity (min 56m, avg 63m) for 391 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 396.69999999999998863131622783839702606201171875,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-09-07T02:50:16+00:00",
        "lat": 34.70779830000000032441676012240350246429443359375,
        "lon": 33.32045000000000101181285572238266468048095703125
    },
    "last_point": {
        "ts": "2026-09-07T09:27:00+00:00",
        "lat": 34.70765829999999851906977710314095020294189453125,
        "lon": 33.320508300000000190266291610896587371826171875
    }
}